Table 1 Age, gender and practice at each selection point.
All eligible participants | Responded to Health Survey | Reported knee pain in last 12 months | Consented to further contact | Responded to Regional Pains Survey | Attended research clinic | Responded to 18 m FUP Survey | |
|---|---|---|---|---|---|---|---|
N | 8984 | 6108 | 3106 | 2226 | 1949 | 819 | 776 |
Practice: | |||||||
A | 3449 (38) | 2268 (37) | 1227 (40) | 804 (36) | 690 (36) | 302 (37) | 284 (37) |
B | 3696 (41) | 2535 (42) | 1251 (40) | 913 (41) | 806 (41) | 330 (40) | 314 (40) |
C | 1839 (20) | 1305 (21) | 628 (20) | 509 (23) | 453 (23) | 187 (23) | 178 (23) |
Age (years): | |||||||
50–59 | 3014 (34) | 1866 (31) | 898 (29) | 730 (33) | 614 (32) | 236 (29) | 231 (30) |
60–69 | 2535 (28) | 1872 (31) | 964 (31) | 734 (33) | 663 (34) | 312 (38) | 303 (39) |
70–79 | 2056 (23) | 1555 (25) | 822 (26) | 551 (25) | 490 (25) | 222 (27) | 201 (26) |
80+ | 1369 (15) | 815 (13) | 422 (14) | 211 (9) | 182 (9) | 49 (6) | 41 (5) |
Gender | |||||||
Female | 4887 (54) | 3416 (56) | 1832 (59) | 1259 (57) | 1108 (57) | 440 (54) | 417 (54) |
Male | 4097 (46) | 2692 (44) | 1274 (41) | 967 (43) | 841 (43) | 379 (46) | 359 (46) |